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No. 601,317. i Patented Mar. 29, 1898.1

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No. 601,317. PatentedMar; 29,1898.

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WITNESS INVEN T0]? JOHN FIELDEN, OF ROCHDALE, ENGLAND.

WOOL-DRYING APPARATUS.

SPECIFICATION forming part of Letters Patent No. 601,317, dated March 29, 1898. I Application filed eptember 3, 1896. $er1'a1No. 604,761. (No od l.) Patented in England June 1, 1894,11'0. 10,632i

To all whom it may concern:

Be it known that I, JOHN FIELDEN, a subject of the Queen of Great Britain, and a resi dent of Sussex street, Rochdale, in the county of Lancaster, England, have invented certain new and useful Improvements in an Apparatus for Drying, Oarbonizing, or Cooling Fibrous or other Material, of which the following is a specification, reference being had to the accompanying drawings, forming a part thereof, in which similar letters of reference indicate corresponding parts wherever found throughout the several views.

This invention relates to apparatus for drying, carbonizing, or cooling fibrous or other material; and the object thereof is to provide an. improved apparatus for this purpose by which fibrous or other material is dried either by cold or by heated air, a further object being to provide an apparatus for conveying such materials through a drying stove or chamber in which vegetable substances are carbonized or extracted by heat from the animal fibers, such as wool, hair, rags, &c.

The invention is the same as that for which ,Letters Patent were granted to me in Great Britain June 1, 1894, No. 10,632, and is fully disclosed in the following specification, of

which the accompanying drawings form a part, in which Figure 1 is an end elevation of a series of conveying-tables arranged to work one above another. Figs. 2 and 3 represent,respectively, the longitudinal side section and end section of the steam-heated feeding-roller. Fig. 4 is a longitudinal section of the feeding end of a drying and carbonizing machine. Fig. 5 is an end section of the feeding endof the drying and carbonizing machine containing a series of conveying-tables one above another; and Fig. 6, a view similar to Fig. 4, but on a somewhat larger scale and showing all of the parts in operative position and in connection, except the feed-rollers F, which are not shown in operative connection with a steam-boiler on account of the smallness of the scale, this breadth desirable. The said table or tables, which may be of perforated metal or other suitable material, may be of any convenient dimensions and so adapted or arranged as to operate, respectively, in a backward and forward direction or tohave to and fro'movements, which movements are effected by suitable mechanical means, but more particularly so arranged that the said table, tray, or trays shall during its forward movement engage, abut, or come in contact with a buffer or stationary piece, the effect of which produces stoppage of the table or tray by concussion, and consequently causes the material which may be situated on the surface to slide thereon or therefrom laterally in contradistinction to the pitching or tossing action as hitherto andwhich effect the stop or concussive force, for the said purposes herein forms a novel feature of my invention, as by such means rolling or tangling of the material is obviated.

The material to be dried or conveyed is received or placed upon the conveying table or tables or trays, which may be arranged in series or tiers in the ordinary manner and now well known, and is carried, impelled, or slid forward along the surface thereof and eventually therefrom onto the succeeding or subjacent reciprocating concussion-tray or any suitable table, as in the case when one conveying-tray is to be used, these simultaneous occurrencesthe sliding on and from the tray or trays-occurrin g continuously from the receiving end to the delivering end of the machine. By these means fibrous or other materials are caused to be intermittently conveyed along the table or trays through either stove or cooling-chamber. The said conveying table or tray will save much time in cleaning the drying apparatus.

In the case of conveying-trays of small dimensions or not of heavy construction I employ a modification of mechanical Ineans'for effecting the conoussive force or stop of the table or tray for the purpose hereinbefore described. The said conveying tables'or trays may also be caused to perform the work of conveying, as hereinbefore described, by means of springs and hammers or other suit able means, but arranged and adapted to simultaneously force the conveying table or tray forward, then backward intermittingly from underneath, the material resting upon the said table or tables during the process of drying or heating.

The second part of my invention relates to the metal feeding-rollers of the continuous drying-machine or cooling-chamber, usually two rollers. When either of these rollers is heated with steam for the purpose of drying, I place a suitable core or block inside to prevent any excessive quantity of water from collecting in the steam box or cylinder used for heating the said feeding roller or rollers. A reciprocating perforated cleaning flap or shaker may be used in connection with the said conveying-table inside the drying apparatus.

When it is desirable to have a current of heated air passing through the drying apparatus, I propose to arrange tubes and guideplates in such a manner that they will direct and cause the air-supply to enter at the top of the drying-chamber by more than one inlet at the same time in such a manner that the air-pressure will be distributed instead of the whole-force of the blast entering in at one end of the heated chamber above the said conveying-tables.

In Fig. 2 I have shown a section of a metal core or block r resting inside the stationary steam box or cylinder G, around which the metal feeding-roller g rotates. This core or block fills or partially fills the lower portion of the said steam-box G, which will prevent any large quantity of condensed steam or water from lodging in the said steam box or cylinder when a siphon cannot be conveniently used with the feeding-roller of the dryingmachine.

In Figs. Land 5 I have shown a sectional side elevation and the end elevation, respectively, of one part of a drying and carbonizing machine, illustrating by arrows the direction that'the air may be caused by any blower or fan to travel through air-supply tubes, as B C D, to the upper portion of the dryingchamber and pass through inlets or perforated plate or plates W or may come into contact with deflecting-plates E, arranged in either case to distribute the current of air as equally as possible over the fibrous material after passing through the feeding-rollers, the position of which is here indicated at F. These perforated plates or the deflecting-plates may extend across the top of the machine from side to side and may be adapted or so fixed as to distribute the current of air as it enters the drying-chamber. By preference I use these guide-plates when the air enters the upper portion of the machine or drying-chamber and travels downward in the same direction as the fibrous or other material being dried and in combination with the conveying table or tray, as hereinbefore described.

It will be obvious from the present descrip tion of improvements that when the conveying table or tray is in motion, as herein set forth, any material, such as wool and other fiber, fed upon one end of the said table or tray will be caused to travel along its surface intermittently to the opposite end without being lifted, tangled, or damaged in any way, and that when any number of conveying-tables are suitably arranged in tiers one above another the material operated upon after arriving at the extreme end of a conveying-table will fall upon the next conveyer below and thereby continue its course to the opposite end, and so on from conveyer to conveyer to the end of the series somewhat after the manner that fibrous and other material is usually conveyed through drying chambers or machines by a series of traveling brattices one above another, but with the advantage that the said new conveying-table can be made very strong and durable with few wearing parts, and said conveying-tables also effectually clear themselves from the materials placed upon them, which will greatly facilitate the working of the continuous drying apparatus.

By the introduction of a core or block inside the feeding-roller used to feed fibrous material into the dryingchamber or stove, as herein explained, there is economy in the use of steam when heating this feeding-roller.

The distribution of the air-supply from fan or blower in the upper part of the drying apparatus or stove will prevent small particles of wool or other fiber from being blown about or rolled on its passage along the surface of the aforesaid conveying tables or trays, which is often the case when the full blast of heated air is all admitted at one end of the upper conveying table or tray.

Having fully described my invention, its

construction and operation,I claim as new and desire to secure by Letters Patent- 1. In an apparatus of the character described, a feeding mechanism consisting of a plurality of rollers, steam-cylinders mounted IIO in each of said rollers and in communication with a boiler and metal cores concavo-convex in form in cross-section mounted in each of said cylinders, substantially as and for the purpose described.

2. In an apparatus for drying, carbonizing or cooling fibrous or other material, the combination of a plurality of trays or tables mounted one above another in a suitable casing, and capable of intermittent longitudinal movement, said trays being supported by suitable hangers, and each being provided at the end thereof with a lug or projection, a cam-plate mounted adjacent thereto and provided with means for revolving the same, said 'camplate being adapted to engage the corresponding'lug or projection for a predetermined part of its revolution, a lug or projection secured to the bottom of each of said trays and a corresponding lug or projection secured to the sides of the said casing and adapted to engage the same, substantially as and for the purpose described.

3. In an apparatus for drying, carbonizing or cooling fibrous or other material, the combination With the shaking-trays of a supple- In testimony that I claim the foregoing as 10 my invention Ihave signed my name, in presence of the subscribing Witnesses, this 19th JOHN FIELDEN.

Witnesses:

EDW. LYTTLETON WORTH, NORMAN E. ROSTRON. 

